Merchant Monitoring

Last Updated: 2025-02-17 Status: Complete

Effective merchant monitoring is the foundation of PayFac risk management. Real-time dashboards, intelligent alerts, and automated actions help identify and address risk before it impacts network compliance.

Quick Reference

Monitoring Area	Frequency	Alert Threshold
Chargeback ratio	Daily	> 0.5%
Fraud rate	Daily	> 0.5%
Decline rate	Hourly	> 30%
Transaction velocity	Real-time	3x normal
Health score	Daily	< 70

Monitoring Architecture

Key Metrics to Monitor

Chargeback Metrics

Metric	Calculation	Target	Critical
Chargeback ratio	Chargebacks / Transactions	< 0.5%	> 1.0%
Chargeback count	Raw count per period	Context	> 100/month
Chargeback trend	Week-over-week change	Declining	+25%
Win rate	Representments won / Total	> 40%	< 20%

Fraud Metrics

Metric	Calculation	Target	Critical
Fraud rate	Fraud chargebacks / Transactions	< 0.5%	> 1.0%
Fraud amount	Dollar value of fraud	Context	> $50K/month
3DS adoption	3DS transactions / Total	> 80%	< 50%
Authorization fraud	Fraud / Authorizations	< 0.1%	> 0.5%

Operational Metrics

Metric	Calculation	Target	Critical
Decline rate	Declines / Auth attempts	< 20%	> 35%
Refund rate	Refunds / Transactions	< 5%	> 15%
AVS mismatch rate	AVS failures / Total	< 10%	> 25%
CVV mismatch rate	CVV failures / Total	< 5%	> 15%

Volume Metrics

Metric	Calculation	Target	Critical
Daily volume	Transactions per day	Baseline	> 3x normal
Average ticket	Total $ / Transaction count	Stable	> 2x normal
Peak hour ratio	Peak volume / Average	< 3x	> 5x
New customer rate	First-time / Total	Context	Sudden spike

Alert Configuration

Alert Levels

Alert Thresholds by Metric

Metric	Warning	Elevated	Critical
Chargeback ratio	> 0.5%	> 0.75%	> 1.0%
Fraud rate	> 0.5%	> 0.75%	> 1.0%
Decline rate	> 25%	> 30%	> 40%
Volume spike	> 2x	> 3x	> 5x
Health score	< 80	< 70	< 50

Alert Actions

Alert Level	Notification	Automated Action
Warning	Email to merchant	None
Elevated	Email + SMS to merchant + PayFac ops	Increase monitoring
Critical	Immediate page to ops team	Consider suspension

Merchant Health Score

A composite score that aggregates multiple risk factors into a single metric.

Score Components

Component	Weight	Description
Chargeback ratio	25%	Current month ratio
Chargeback trend	15%	30-day trend direction
Fraud rate	20%	Fraud as % of transactions
Operational stability	15%	Decline rate, refunds
Account age	10%	Time since onboarding
Historical performance	15%	6-month average

Score Calculation

Score Interpretation

Score Range	Category	Action
90-100	Excellent	Standard monitoring
80-89	Good	Standard monitoring
70-79	Fair	Increased monitoring
60-69	Concerning	Monthly review, consider reserve
50-59	Poor	Weekly review, increase reserve
< 50	Critical	Immediate action required

Dashboard Design

Operations Dashboard

┌─────────────────────────────────────────────────────────────┐
│  PORTFOLIO OVERVIEW                              [Live] ⚡   │
├─────────────┬─────────────┬─────────────┬───────────────────┤
│ Merchants   │ CB Ratio    │ Fraud Rate  │ At Risk           │
│ 2,847       │ 0.42%       │ 0.38%       │ 23                │
│ ↑ 12 today  │ ↓ 0.02%     │ → stable    │ ↑ 3               │
├─────────────┴─────────────┴─────────────┴───────────────────┤
│  ALERTS (12 active)                                         │
│  ⚠️ MID-12345: CB ratio 0.95% - Critical                    │
│  ⚠️ MID-67890: Volume spike 4.2x - Elevated                 │
│  ⚠️ MID-11111: Health score 62 - Concerning                 │
├─────────────────────────────────────────────────────────────┤
│  TRENDING ISSUES                                            │
│  📈 Fraud up 15% WoW across electronics category            │
│  📉 CB down 8% after 3DS rollout                            │
└─────────────────────────────────────────────────────────────┘

Merchant Detail View

┌─────────────────────────────────────────────────────────────┐
│  MERCHANT: Example Store (MID-12345)                        │
│  Health Score: 68 ⚠️   Status: Under Review                 │
├─────────────────────────────────────────────────────────────┤
│  KEY METRICS (Last 30 Days)                                 │
│  ┌───────────────────────────────────────────────────────┐  │
│  │ CB Ratio: 0.95% ████████████████████░░░░ Target: 0.5% │  │
│  │ Fraud:    0.42% ████████████░░░░░░░░░░░░ Target: 0.5% │  │
│  │ Declines: 22%   ████████████████░░░░░░░░ Target: 20%  │  │
│  └───────────────────────────────────────────────────────┘  │
├─────────────────────────────────────────────────────────────┤
│  CHARGEBACK TREND                                           │
│        ▲                                                    │
│  1.0%  │            ╱──●                                    │
│  0.8%  │      ●───●╱                                        │
│  0.6%  │  ●──●                                              │
│  0.4%  │●                                                   │
│        └────────────────────────────────▶                   │
│          W1   W2   W3   W4   Now                            │
├─────────────────────────────────────────────────────────────┤
│  ACTIONS                                                    │
│  [Request Documentation] [Increase Reserve] [Suspend]       │
└─────────────────────────────────────────────────────────────┘

Automated Actions

Action Triggers

Trigger	Condition	Automated Action
CB spike	> 1.5% single day	Pause payouts
Fraud spike	> 2% single day	Suspend processing
Volume spike	> 5x normal	Queue for review
Health drop	Score drops > 20 pts	Notify ops team
Network threshold	> 90% of VAMP/ECP	Escalate to management

Action Workflow

Payout Controls

Merchant Status	Payout Timing	Hold Amount
Normal	Standard (T+2)	None
Warning	Standard	None
Elevated	Delayed (T+5)	None
Critical	Delayed (T+10)	10% reserve
Suspended	Held	100% hold

Investigation Workflow

Triggered Investigation

Investigation Checklist

Step	Action	Documentation
1	Review recent transactions	Transaction log
2	Analyze chargeback reasons	Reason code breakdown
3	Check for fraud patterns	Fraud report
4	Review customer complaints	Support tickets
5	Verify business operations	Merchant interview
6	Assess remediation options	Action plan

False Positive Management

Common False Positives

Scenario	Trigger	Resolution
Seasonal spike	Volume exceeds threshold	Adjust baseline seasonally
New product launch	Sudden volume increase	Pre-notify before launch
Batch processing	Single large transaction	Configure batch alerts
Legitimate high-ticket	Average ticket spike	Category-appropriate thresholds

Tuning Recommendations

Metric	Adjustment Approach
Volume	Use rolling 90-day baseline
Ticket size	Industry-specific thresholds
Decline rate	Account for new customer rate
Seasonal	Apply seasonal adjustment factors

Network Programs - VAMP, ECP, EFM thresholds
Reserve Management - Financial controls
Chargeback Management - Chargeback handling

Quick Reference​

Monitoring Architecture​

Key Metrics to Monitor​

Chargeback Metrics​

Fraud Metrics​

Operational Metrics​

Volume Metrics​

Alert Configuration​

Alert Levels​

Alert Thresholds by Metric​

Alert Actions​

Merchant Health Score​

Score Components​

Score Calculation​

Score Interpretation​

Dashboard Design​

Operations Dashboard​

Merchant Detail View​

Automated Actions​

Action Triggers​

Action Workflow​

Payout Controls​

Investigation Workflow​

Triggered Investigation​

Investigation Checklist​

False Positive Management​

Common False Positives​

Tuning Recommendations​

Related Topics​

References​